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The Atari Compendium (Toad Computers) (1994).iso
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PERMUTE.ICN
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1990-03-28
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327 b
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18 lines
procedure main()
output := set()
every 1 to 2 do
every insert(output,permute("ogram"))
every write(!output)
end
procedure permute(s)
local i, x, t
if s == "" then return ""
every i := 1 to *s do {
x := s[i]
t := s
t[i] := ""
suspend x || permute(t)
}
end